When told to "just grow up" after an act of particularly childish misbehaviour a 13 year old Dennis stood on his chair and whilst making a kind of whooooosh - noise used hand gestures and miming to simulate pubic hair growing at a superhuman rate. He then began frowning and speaking in a comedic deep voice about 'Gardening, gardening gardening' and 'Overdraft, overdrafe, overdraft'. A fascinating take on the perception of adults by children which was completely lost on our teacher who marched him from the room while Dennis was in the middle of grumbling about interest rates.